Device for storing and releasing a substance

Abstract

A cap is provided for storing powder and releasing it into a bottle. The cap comprises a cap top and an inner cap member which fits partially within the cap top to form a closed cavity for storing the powder and the cap is secured over the neck of the bottle. In use, the cap is rotated in an anticlockwise direction so that the cap top is rotated and raised relative to the inner cap member so as to open the cavity, releasing the powder stored therein into the bottle via the neck. The cap top is then further rotated in the anticlockwise direction so as to also rotate the inner cap member in the same direction, freeing the cap from the bottle.

What is claimed is:  
     
       1. A device for storing and releasing a substance, comprising outer and inner parts which interengage to form a closed cavity for storing the substance; 
       means for securing the interengaged parts over an opening of a container;  
       means for cutting or shearing a portion of the inner part from a remaining portion of the inner part so as to open the cavity;  
       means for enabling movement of the outer part in one direction relative to the inner part whilst the interengaged parts are secured on the container, said movement causing said cutting or shearing means to open the cavity and release the substance into the container via the container opening; and  
       means for enabling further movement of the outer part in said one direction so as also to move the inner part in the same direction and thereby remove the interengaged parts from the container.  
     
     
       2. A device as claimed in  claim 1 , wherein the inner part is provided with the means for securing the interengaged parts to the container opening. 
     
     
       3. A device as claimed in  claim 1 , wherein the outer part is adapted to close the container opening. 
     
     
       4. A device as claimed in  claim 1 , further comprising frangible tamper indicating means adapted to be broken to enable the device to be removed from the container. 
     
     
       5. A device as claimed in  claim 1 , including means for sealably storing the substance. 
     
     
       6. A device as claimed in  claim 1 , further comprising a container having an aperture, said device being sized and located to close said aperture of the container. 
     
     
       7. A device as claimed in  claim 5 , wherein said outer part has a closed end and a cylinder extending from the closed end, said cylinder is centrally located on the closed end and has a distal end, and said inner part has a closed end and the closed end has a pair of annular walls defining an annular groove for receiving said distal end of said cylinder. 
     
     
       8. A container for retaining a liquid and having an opening, and a device adapted to close said opening and for storing and releasing a substance, said device comprising outer and inner parts which interengage to form a closed cavity for storing the substance; 
       means for securing the interengaged parts over the opening of said container;  
       means for cutting or shearing a portion of the inner part from a remaining portion of the inner part so as to open the cavity;  
       means for enabling movement of the outer part in one direction relative to the inner part whilst the interengaged parts are secured on the container, said movement causing said cutting or shearing means to open the cavity and release the substance into the container via the container opening; and  
       means for enabling further movement of the outer part in said one direction so as also to move the inner part in the same direction and thereby remove the interengaged parts from the container.